Ableton Forum

Ableton Live x64 - 64-bit version

Arrangement - MIDI mappable Transport position

Audio Effects - Multiband Stereo Imager

Audio Effects - Oscilloscope

Automation - Bezier Curves

Drum Rack - Ability to change Choke Group for multiple Chains simultaneously

Drum Rack - Ability to rename multi-layered pad

MIDI - Ability to color notes

Newsletter - Email registered users when new update is released

Racks - Option to make Macro Knobs snap to values of your choice

Transport - Give Count-In options from Metronome it's own button (That way it can be mappable and switched on / off via keyboard or MIDI.)

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Random idea: Mixer Section - Option to Move Mixer Section to a dedicated tab

Ableton in 64 bit
Videos in session view!
Video effects!
Effect: Subharmonic enhancer (like dbx 120A)
More range in Autofilters (<26 Hz for hi-pass filter)
More (Hz) range in Equalizer
An improved ring modulator (like Traktor's)
If a MIDI controller is disconected on a PC, have the option to just plug it again and recover it.
Improve auto warping.
A Key detector for clips. So you can review the key of the clip and the effect when you twist the key/tone parameter on it.
Improve file management (like itunes kind of thing: atributes, tags, playlits, etc.)
Effect: Scratch, Stop, Spin back, Reverse (on the fly).

..and VST3 for Sidechain !